Tool holder



C. R. VICKERS.

TOOL HOLDER.

Dec. 26, 1922.

FILED MARK 9, 1921.

|NVENTOR Figure 2 is a side elevation of the Patented Dec.-

TOOL HOLDER.

Application filed March 9, 192 1. SerialNo. 451,077;

To all whom? it may concern:

Be it known that I, CLARENCE R. VIoKnns, a citizen of the United States,and a resident of Plainfield, county of Union, State of New Jersey, haveinvented anlmprovement in T001 Holders, of which the followingdescription, in connection with the accompanying drawing, is aspecification, like characters on the drawing representing like parts. a

This invention relates to cutting tools for turning-lathes, planers andother similar machines using tool-holders which. are so constructed withrelation to the blades as to insure rigidity of the latter whensupported in the tool post of a lathe, planer or similar machine, andthe objects in view are to rigidly support the cutting blade in the.t0ol-holder against the component pressures on the blade when cuttingany material in the lathe; to provide a tool adapted to out. close toshoulders or chuck jaws, and to, provide a construction and arrangementadapted to keep the cuttings from the joints between the connectedparts; also to provide a right or a left hand cutting tool by invertingthe tool-holder and blade within the tool-holder. l

Further objects and advantages of. this invention. will appear in thefollowing de-' scrip-tion and the novel. features will be particularlypointed out in the appended claims.

In the accompanying drawings; Figure 1 is a plan view of the tool-holderand blade. tOO' holder and its blade looking from its side A. Figure 3is a side elevation of the toolholder and its blade looking from theside Figure 4 is a partial plan view of the tool-holder. Figure 5 isapartial side elevation of the blade and also for the endwof the clampscrew- Figure 6 is a partial plan view of the tool-holder showing a lugto keep the clamp in its place and also showing with dotted lines thechannels for the blade, also for the end of the clamp screw. Figure 7 isa partial end elevation of F igure 6. Figure 8 is an end elevation ofthe binding ,erably sists of a binding collar 5 the same showing thechannels for.

collar.

same. y

Similar numerals of reference indicate corresponding parts in all thefigures of the drawings. s i I 5 The tool-holder embodying my inventioncomprises a. shank 1 adapted to be engaged I with a tool post oi": alathe, planer, or similar I machine and with an enlarged end 2 having aparallel groove .4 latterally to partially reon ceive the cutting tool8, also on the opposite side a similar groove 3 to receive the end of aset screw 7, threaded into the lug 6 on the Figure is a side elevationofthe binding collar 5; a binding collar 5 cut or mortised to receivethe enlarged'end 2 of the shank and also cut to receive aportion of theblade 8 and a set screw 7 to clamp the blade to the enlarged portion ofthe shank.

A hole 9 shown in Figs. 4 and '5 may be drilled through the end of thetool-holder to insert a cotter or other. pin to keep the binding collarand shank together when the bladeis removed, or a lug 10, shown in Figs.

6 and 7 may be substituted. I

The tool and seat for same are shown prefangular to the shank, but maybe made parallel if so desired and also ofl'set.

The means I employ for securing the blade in its place in the groove, orits seat provided. in the enlarged end of the shank, conmortised out toreceive the enlarged portion of the shank 2 and also 01 the blade 8 andso as to have a small amount of clearance between the shoulderedportions 1111 in'the binding collar Sand width 12 of shank and having aset screw in said collar to draw the said blade rigidly. against thebottom of said groove in the shank. Y

It is obvious that partially seating the cutting tool betweenfthe' lips13-13 of the groove a and binding thesaid cutting tool with the bindingcollar and itsset screw a very rigid constr ction is obtained.

What I claim is 1. In a tool-holder, the combination with a shank, .oneend of which is enlarged, having a channelin said enlarged end forholding a cutting tool against vertical move ment, a second groove onthe opposite side of the enlarged end to receive the point of a setscrew, a cutting tool a collar surround ing said tool-holder and thesaid tool, a set screw threaded in the said collar, the point of whichrests in the bottom of the second said groove.

2. In a tool-holder, the combination with a shank, one end of which isenlarged, the said enlarged end having a groove n one signature.

' CLARENCE R. vIoKERs.

I have afiixed my 15

